:root {
    --primary-blue: #3498db;
    --light-blue: #ebf5fb;
    --medium-blue: #aed6f1;
    --dark-gray: #2c3e50;
    --medium-gray: #7f8c8d;
    --light-gray: #f8f9fa;
    --border-gray: #d5dbdb;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    color: var(--dark-gray);
    min-height: 100vh;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 6px 30px rgba(52, 152, 219, 0.1);
    border: 1px solid var(--border-gray);
    margin-bottom: 20px;
}

.wide-container {
    max-width: 1800px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 6px 30px rgba(52, 152, 219, 0.1);
    border: 1px solid var(--border-gray);
    margin-bottom: 20px;
}

.settings-container {
    max-width: 500;
    float: left;
    margin: 0 auto;
    background-color: var(--light-blue);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 6px 30px rgba(52, 152, 219, 0.1);
    border: 1px solid var(--border-gray);
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    color: var(--dark-gray);
    margin-bottom: 10px;
}

.subtitle {
    color: var(--medium-gray);
    font-size: 1.1em;
}

section {
    margin-bottom: 30px;
}

h2 {
    color: var(--primary-blue);
    border-bottom: 2px solid var(--light-blue);
    padding-bottom: 5px;
    margin-bottom: 15px;
}

p {
    font-size: 1.05em;
    margin-bottom: 15px;
}

ul {
    padding-left: 20px;
}

li {
    margin-bottom: 8px;
}

.doc-links {
    display: flex;
    gap: 20px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.doc-link {
    display: inline-block;
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--white) 100%);
    padding: 15px 25px;
    border-radius: 8px;
    border: 1px solid var(--medium-blue);
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: all 0.3s ease;
    flex: 1;
    min-width: 200px;
    text-align: center;
}

.doc-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.15);
    border-color: var(--primary-blue);
}

footer {
    margin-top: 50px;
    text-align: center;
    color: var(--medium-gray);
    font-size: 0.9em;
    padding-top: 20px;
    border-top: 1px solid var(--border-gray);
}

.nav-links {
    margin: 20px 0 40px 0;
    text-align: center;
}

.nav-link {
    display: inline-block;
    margin: 0 10px;
    padding: 10px 20px;
    background: var(--light-blue);
    border-radius: 8px;
    border: 1px solid var(--medium-blue);
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(52, 152, 219, 0.15);
    border-color: var(--primary-blue);
}

@media (max-width: 768px) {
    .container {
        padding: 25px 20px;
        margin: 15px;
    }
    
    .doc-links {
        flex-direction: column;
    }
    
    body {
        padding: 10px;
    }
    
    .nav-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    
    .nav-link {
        margin: 0;
    }
}